diff --git a/wsl2-systemd-script.sh b/wsl2-systemd-script.sh
index 7c88834..ac16e9d 100755
--- a/wsl2-systemd-script.sh
+++ b/wsl2-systemd-script.sh
@@ -73,7 +73,7 @@ Defaults        env_keep += PRE_NAMESPACE_PWD
 EOF
 
 if ! grep 'start-systemd-namespace' /etc/bash.bashrc >/dev/null; then
-  $SUDO_CMD sed -i 2a"# Start or enter a PID namespace in WSL2\nsource /usr/local/bin/start-systemd-namespace.sh\n" /etc/bash.bashrc
+  $SUDO_CMD sed -i 2a"# Start or enter a PID namespace in WSL2\nsource /usr/local/bin/start-systemd-namespace\n" /etc/bash.bashrc
 fi
 
 $SUDO_CMD rm -f /etc/systemd/user/sockets.target.wants/dirmngr.socket